Car-dumping apparatus



Dec. 25, 1923. 1,478,723

. P. D. WRIGHT CAR DUMPING APPARATUS Filed March 16, 1925 5 Sheets-Sheet 1 Dec/25,1923. l1,418,723

I P. D. WRIGHT CAR DUMPING APPARATUS Filed March 1e, 1925 s sheets-sheet. w

Dec. 25, 1923. 1,478,723

P. D. WRGHT CAR DUMPING APPARATUS Filed March 16, 1923 5 Sheets-Sheet 3 llollloll wxllalldlllollwllmllollollMl Iollwliol lolllollu I l I l l Il vPatented Dec; 25, i923a muro starei PAUL D. WRIGHT, or Enenwoon man, rnnnsriviinrn;

ycAi-a-romarin@ APPARATUS.

Application filed March 16, 1923. Serial No. 625,590.

To all whom t may. con-cern:

Be it known that l, PAUL'D. WRIGHT, a citizen of the United States, and resident of Edgewood Park, Pittsburgh, in the county of Allegheny yand State of Pennsylvania,` have invented certain new and useful lm` proveniente in Car-Dumping Apparatus, of

which the following is a specification.

This invention relates to car dumping ap,-

paratus and moreparticularly to `apparatus tor picking up a oar bodilyV and turning .it over into such position that the contents will be quickly dumped therefrom. v Y

@ne of the objects oi the invention is'the provision of means for preventing the spillage of the material being. dumped yunder the apparatus, said meansbeing adapted to collect the spilled material from one dumping operation and to discharge it during the neXt dumping operation.

Another object is to provide a cardumping apparatus with a novel form of spill apron composed of the novel combination and design of parts hereinafter described and illustrated in the accompanying drawings.

I@ln the drawings, Figure l is a transverse sectional elevation through a car dumper embodying my invention. n

Figure 2 is an enlarged detail scetional elevation through the apron plates at one of the bumpers. f v

Figure 8 is a similar view to theone side of the bumpers.

Figures t and la are detailed longitudinal elevations of the apron plates.

Referring more particularly to the drawings, the numeral 2 designates the dumping cradle as a whole which is substantially 'll-shaped and is pivotally mounted along the upper edge of its dumping side 3 on a pivot shaft 4. i n f The closed or bottom side of the cradle 2 is adapted to normally rest upon a foundation 5 and has tracks 6 mounted thereon to receive the car 7 to be dumped.

The cradle is provided with hook members 8 adapted to be engaged over the top of the car 7 to lock it in place on the cradle.

The dumping side of the cradle is provided with a side spill apron 97 whichter? yumns l5. The columns rality of plates rigidly secured to a frame work lll which is supported on arms or color arms 15ers pivotally supported atftheir lower ends on a shaft or pivot bar lo to permit the lateral movementv of theL apron 9.v Suitable cylinders lare provided for moving the apron 9. The cradle'2'and side apron 9 so fardescribed are of well knownconstruction with the exception that the side apron is extended somewhat below the level of the side aprons heretofore used. ln operation the cradle is adapted to be swung' around the pivot shaft t to a substantially inverted position (as shown in dotted lines in Figure l) by means of cables and overhead operating mechanism to discharge the ore or other material 'from the car 7. During the dumping operation a certain amount' oi' the ore or other material will fall or spill onto the apron 9 and when the car and cradle is returned to the starting position the spilled material will 'fall down between the car and apron and into the pit beneath thecradle. During the continued operation of the device the spilled material will collect in cradle-to such an extent that it will inter lere with the operation of thefcradle and the dumping operations must be suspended until the spilled material is removed;

In order to prevent the spilled material from collecting in the pit below the cradle l have provided the rigid bottom apron 10 which is rigidly ksecured to the track striiigers 19 and has the bridging apron 1l, which is composed of a plurality of plate segments 20, hingedly mounted along its lower edge. rlhe free or upper edge or" the apron 11 overlaps and is slidably supported on the side apron 9, thus providing torfree transverse movement of the apron 9 relative to the bottom apron l0. A leather coverv member 2l, preferably formed from old belting, is secured to the aprons l() nnd l1 so as to overlie the hinged joint between said aprons and prevent the wedging of the spilled material in said joint.

The apron 9 is cut away at intervals to permit bumpers 23 to project therethrough. The bumpers 23 are carried by upright arms 24; mounted on the pivot bar 16 and are adapted to be moved transversely bythe cylinders 25. The bumpers 23 are adapted to engage the side of the car and thus support the weight of the car while it is being inverted. `r

By the addition of vspilliaprons.lOand 1l all spillage into tlieipit belowgthe cradle is prevented, since any material spilled ,is caught by tlie aprons l0 and 11 andlield .11,11- til the neXt dumping operation, when it will be discharged along with the material from the car being dumped.

l. ln a dumping apparatus a cradle adapted to swing a loaded car into substantially inverted position,a side apron member ymounted along the dumping side .of said 1 cradle and movable transversely toward and away ffom` saidcara bottom apron secured to said cradle-anda bridgingapron hingedly secured tosaid bottom apron and having its upperedge loosely supported :on .and

e overlapping said side apron.

2.1n' a dumping apparatus a cradle adapted to swing a loaded car intosubstantially inverted position, a. Side apron lmember mounted along themdumping side of said i cradle and movable transversely toward and away-from said car, av bottom apron rigidly secured on said cradle and a vbridging apron havinglits bottom edge' hingedlysecured to said bottomapron and its upper edge loosely l`supported kon iand overlapping :said :side

apron. 4

3. In Va dumping apparatus Va cradle adapted to swing-a loaded car into substan- Ucradle and movable transversely toward and away frolla said. oar, a bottom apron rig-idly secured on sai'd cradle and a bridging apron ,-having-itsbottom edge liingedly secured to said bottom apron and its upper edge loosely Vspqiported on and Ioverlapping Vsaid side apron, said bridging apron being composed of a series of sliort lengths to facilitate its operation.

14. vIn a .dumping apparatus a cradle ac lapted..to` swinga loaded car into substantially inverted position, a side apron member mounted along the. dumping vside of said cradleand movable transversely toward and away from .said car.y a bottom Vapron rigidly secured onsaid cradle, an inclined bridging apron having itsbottom edge liingedly secured to saidbottom apron and its upper edge `loosely supported on and overlapping Said side apron, .and a flexible covering memberksecured to saidbottom apron and said I bridging apron and overlying the yhinged* connection between said aprons to prevent the unloaded material entering and wedging betweensaid aprons.

iln testimony whereof I have hereuntol set my hand.

.PAUL D. WRIGHT. 

